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	Structure determination of the high-pressure phases of topological insulator bi2se3 using experiments and calculations
	Cheng, Hu1,2; Zhang, Junran2,3; Li, Yanchun2; Li, Gong1; Li, Xiaodong2
刊名	Journal of applied physics
	2017-06-14
卷号	121期号:22页码:6
ISSN号	0021-8979
DOI	10.1063/1.4985546
通讯作者	Li, yanchun(liyc@ihep.ac.cn) ; Li, gong(gongli@ysu.edu.cn)
英文摘要	The pressure-induced phase transition of bismuth selenide (bi2se3) was investigated by combining theoretical calculations with synchrotron powder x-ray diffraction measurements up to 57.4gpa. we demonstrated that the ambient-pressure rhombohedral bi2se3 crystallized into a monoclinic structure with the space group c2/m at 9.1gpa, and eventually to a body-centered tetragonal structure with the space group i4/mmm at about 27.2gpa. this behavior was different from the transformation sequences of bi2te3 and sb2te3. the stabilities of five structures of bi2te3 were studied by density functional theory calculations. furthermore, an unusual irreversible relaxation process was observed. we attempted to make clear the unusual structural behavior of bi2se3 occurring in the compression process and the relaxation process.
WOS关键词	SB2TE3 ; BI2TE3 ; SUPERCONDUCTIVITY ; SURFACE
WOS研究方向	Physics
WOS类目	Physics, Applied
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000403291200050
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177380
专题	高能物理研究所
通讯作者	Li, Yanchun; Li, Gong
作者单位	1.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Peoples R China 2.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Hu,Zhang, Junran,Li, Yanchun,et al. Structure determination of the high-pressure phases of topological insulator bi2se3 using experiments and calculations[J]. Journal of applied physics,2017,121(22):6.
APA	Cheng, Hu,Zhang, Junran,Li, Yanchun,Li, Gong,&Li, Xiaodong.(2017).Structure determination of the high-pressure phases of topological insulator bi2se3 using experiments and calculations.Journal of applied physics,121(22),6.
MLA	Cheng, Hu,et al."Structure determination of the high-pressure phases of topological insulator bi2se3 using experiments and calculations".Journal of applied physics 121.22(2017):6.

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